1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fb03de1f7098349569cdb3384690465bac415f3a77332bed7056c6037f28ea. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e4c07d2-1bed-4ee1-97cf-6b6d741ec357.json and https://artists.proofprofile.net/proofs/artist/6e4c07d2-1bed-4ee1-97cf-6b6d741ec357.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4138038c03f209041c549e2da6249ba82f4dcb01768b0bbed8ea7e1fdd35f494. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917347c36786a8ed2e260db08fa5ace2987d9173fa8272d7ab202ceda88ec1c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b0d728c6e6dfc29bb81c5fa40f61747509fd2e0973bd60dc9021a17a1f3919. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588567aea1718b2ef380e12ce7d97c41bd6d21591422c65d1f484b9707ab401d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd284d01521bb47f3729a29ce8367d131af6d6ce8e3a2a52e4824810a3619f27e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0b87b2c8f879d8c7afd62c744b989dc52d158f2523b1e4c73d07f49453c249. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca78671dbab5f42e8a03c4ee5486c4110dbae0f72adff360f2ca16189e14ca2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd442d0d27ce8891241d3beb9f491beaa728fa5a1f8b9c84b2104ce6e773d379d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca33030ffc1028419b794c959e6f0dc7b3c7983eef3a37984d2aff2b375814d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb49b2a9e8ac2cdfe156f34e2534959ab25ad9d37d8b4e1ddbe34a635c45abe2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e32471b4bfa240139d6a3972611f0e382bd643f2f48c287e73ed63bb3737e5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02aca11e88adbbb8e1959023c228938ac21146a37741da292da700d137255c4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d02a3815f32c55a89f1fd115c2818db6981d16a0291c5357b8554ba70f61bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefddd6a599b1a0f48d279514ecaaa1afc623733bfc26c0d77cc8704806b3b3e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c82b88249a8499cae0614955d8b08b525ba874d340de4e5f13d8622809f77b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52212d21f7811d346fc79091b50fb312fbfa0a8c43508b52585e13d01707ecb0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a2c2d68bb14173c2dade015b71d75df52d013dc97d43a8be26e17bae4e6467. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEHU32400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2178abefdca13cd4fb9cd6f4e65c06d6c12e6b07a6214e66bebd17a028fefdc9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfd000b292f416837d93495901b6a75c57264b479606cf908b5a226da00de22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3214966aca5574f004ce89f2cc3ae417c250b6995f4eb712961d2d6b9fe97f8c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3a370537fff8c9c90ada1095f12a0ffad235f507d12713bab6a6f809548070. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c22bd90e60911aa3b675f4ec858cbf44f1d1deb09722aa4ba5a395bb0d7d67. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRCLC2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e29901045d96ed99effe8bd24075c07d13457f1759c832772dd36bfaca099d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0441415201.
Kimse Bilmiyor (feat. Naci Berktaş & Da Poet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49057af67bc19d6672798549859d2d47ef26be068593e3abd3727e3ff0cdd4c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e317145b72bd14543b78691fe3396ca7d2d5a4fa3b6867dfa4b942ce92239ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRUM72400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c8c7206ca7dea631c8b5840045e290081c9226423d6ae788fe8d34084dd9c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4412199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1cef7919c619b40aef2fa8bc45d8a6a474aaab585c7ddd7bad8cbf13f31ea9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91739266.